MEDIUM
2nd CBSE
IMPORTANT
Earn 100

How does air become dirty?

Important Questions on Air

EASY
2nd CBSE
IMPORTANT
EXPANDED Universal Science 2>Chapter 9 - Air>ASSESSMENT ZONE>Q D
What are germs? How do they affect us? 
MEDIUM
2nd CBSE
IMPORTANT
EXPANDED Universal Science 2>Chapter 9 - Air>ASSESSMENT ZONE>Q D
Why should we cover our mouth while sneezing?
MEDIUM
2nd CBSE
IMPORTANT
EXPANDED Universal Science 2>Chapter 9 - Air>ASSESSMENT ZONE>Q D
Why should we grow more plants in open areas?
EASY
2nd CBSE
IMPORTANT
EXPANDED Universal Science 2>Chapter 9 - Air>ASSESSMENT ZONE>Q D
Dustbins at homes should be kept covered. Why? 
EASY
2nd CBSE
IMPORTANT
EXPANDED Universal Science 2>Chapter 9 - Air>ASSESSMENT ZONE>Q D
Why do we keep wet clothes in the Sun to dry?
MEDIUM
2nd CBSE
IMPORTANT
EXPANDED Universal Science 2>Chapter 9 - Air>Enhance Your Life Skills

We can keep the air around us clean in some simple ways.

  • We should not burn wastes out in the open. This makes the air dirty.
  • We should travel in public transport such as buses and metro trains. 
  • We should take the bicycle wherever possible.

Write about two more ways to keep the air clean.